And who are the "people around you"? With the internet that could be half the damn world. It sure is a privilege for you not to have to worry about injustices in the Middle East.
I'm not saying people should be selfish, but I don't see how what you're suggesting is productive either. Even the most well meaning person on this planet cannot possibly have an impact on all these different issues. Pick some areas you know you can contribute to and focus on that.